<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
	<style>
		/* fixed定位 */
		.fxp{
			width: 500px;
			height: 900px;
			background-color: blue;
			position: absolute;
		}
		.fxs{
			width: 200px;
			height: 200px;
			background-color: yellow;
			position: fixed;
			right: 0px;
			bottom: 0px;
		}
	</style>
		<div class="fxp">
			<div class="fxs">
				fix定位类似于广告牌一直不会动
			</div>
		</div>
	</body>
</html>
